Mitra §A: pre-home (S3a/S3b/AccountInactive) + design system + Bestie Home

- Port halo_tokens + halo_theme + HaloButton to mitra_app (rose palette,
  Bricolage display, Poppins body, JetBrainsMono).
- Build S3a Input WhatsApp (figma-bestie BestieS3 first half) with
  +62 chip, leading-zero/62 normalization, allow '+' in input.
- Build S3b OTP verification (6-digit, 60s resend timer, attempts hint,
  Focus(canRequestFocus:false) for maestro inputText compat) with full
  error branching (CODE_MISMATCH, OTP_EXPIRED, OTP_USED, ATTEMPTS_EXCEEDED,
  WRONG_FLOW, ACCOUNT_INACTIVE).
- Add AccountInactive terminal screen for is_active=false mitras.
- Typed MitraAuthError with Indonesian-first localized messages +
  retryAfterSeconds passthrough.
- Rebuild home_screen.dart to match figma BestieHome (greeting + status
  card + Ganti Status CTA + Pengingat + 2-tile dark grid).
- Backend: POST /internal/_test/seed-mitra (idempotent) and
  PATCH /internal/mitras/:id (display_name update).
- Control center: inline Edit Nama on mitras row + expandable inline log
  table under clicked mitra (vs old below-table panel).
- 5 maestro flows ts-mitra-A-01/03/04/05/06 covering invalid input, happy
  path, account inactive, phone-format normalization, and the back-to-S3a
  regression. All green.

Plan + memory documented in:
- requirement/phase4-mitra-prehome-plan.md
- requirement/flow_mitra.md / flow_mitra.mermaid.md §A

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

mitra_app/lib/router.dart

@@ -3,6 +3,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'core/auth/auth_notifier.dart';
 import 'features/splash/splash_screen.dart';
+import 'features/auth/screens/account_inactive_screen.dart';
 import 'features/auth/screens/login_screen.dart';
 import 'features/auth/screens/otp_screen.dart';
 import 'features/home/home_screen.dart';
@@ -33,7 +34,8 @@ GoRouter buildRouter(Ref ref) {
       final authState = ref.read(mitraAuthProvider);
       final isSplash = state.matchedLocation == '/splash';
       final isAuthRoute = state.matchedLocation.startsWith('/login') ||
-          state.matchedLocation.startsWith('/otp');
+          state.matchedLocation.startsWith('/otp') ||
+          state.matchedLocation.startsWith('/auth');
 
       // Show splash only during initial load — don't redirect away from auth routes
       if (authState is AsyncLoading) {
@@ -60,6 +62,7 @@ GoRouter buildRouter(Ref ref) {
       GoRoute(path: '/splash', builder: (_, __) => const SplashScreen()),
       GoRoute(path: '/login', builder: (_, __) => const LoginScreen()),
       GoRoute(path: '/otp', builder: (context, state) => OtpScreen(phone: state.extra as String)),
+      GoRoute(path: '/auth/inactive', builder: (_, __) => const AccountInactiveScreen()),
       GoRoute(path: '/home', builder: (_, __) => const HomeScreen()),
       GoRoute(path: '/sessions', builder: (_, __) => const ActiveSessionsScreen()),
       GoRoute(path: '/chat/session/:sessionId', builder: (context, state) {